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Preparation method of high-hardness alumina-zirconia composite ceramic
The invention discloses a preparation method of high-hardness aluminum oxide-zirconium oxide composite ceramic, which comprises the following steps: firstly preparing aluminum oxide-zirconium oxide powder, then modifying the aluminum oxide-zirconium oxide powder by using strontium oxide, finally carrying out green gel casting by using an Isobam gelling agent, and sintering to obtain the high-hardness aluminum oxide-zirconium oxide composite ceramic. Aluminum oxide-zirconium oxide nano composite powder is prepared through a novel coprecipitation method, strontium hexaaluminate formed through modification effectively prevents brittle failure of the composite ceramic, and an Isobam gel system is environmentally friendly, high in production efficiency, good in blank quality and lower in cost; the prepared alumina-zirconia composite ceramic has good wear resistance, good toughness and high strength.
本发明公开了一种高硬度氧化铝‑氧化锆复合陶瓷的制备方法，该方法首先制备氧化铝‑氧化锆粉体，然后用氧化锶对氧化铝‑氧化锆粉体进行改性，最后采用Isobam胶凝剂进行绿色凝胶注模成型，经烧结得到高硬度氧化铝‑氧化锆复合陶瓷。本发明采用一种新型共沉淀法制备了氧化铝‑氧化锆纳米复合粉末，改性形成的六铝酸锶有效防止了复合陶瓷脆性破坏，并且Isobam凝胶体系环境友好，生产效率高，坯体质量好，成本更低，所制备的氧化铝‑氧化锆复合陶瓷耐磨性好、韧性好、强度高。
Preparation method of high-hardness alumina-zirconia composite ceramic
The invention discloses a preparation method of high-hardness aluminum oxide-zirconium oxide composite ceramic, which comprises the following steps: firstly preparing aluminum oxide-zirconium oxide powder, then modifying the aluminum oxide-zirconium oxide powder by using strontium oxide, finally carrying out green gel casting by using an Isobam gelling agent, and sintering to obtain the high-hardness aluminum oxide-zirconium oxide composite ceramic. Aluminum oxide-zirconium oxide nano composite powder is prepared through a novel coprecipitation method, strontium hexaaluminate formed through modification effectively prevents brittle failure of the composite ceramic, and an Isobam gel system is environmentally friendly, high in production efficiency, good in blank quality and lower in cost; the prepared alumina-zirconia composite ceramic has good wear resistance, good toughness and high strength.
本发明公开了一种高硬度氧化铝‑氧化锆复合陶瓷的制备方法，该方法首先制备氧化铝‑氧化锆粉体，然后用氧化锶对氧化铝‑氧化锆粉体进行改性，最后采用Isobam胶凝剂进行绿色凝胶注模成型，经烧结得到高硬度氧化铝‑氧化锆复合陶瓷。本发明采用一种新型共沉淀法制备了氧化铝‑氧化锆纳米复合粉末，改性形成的六铝酸锶有效防止了复合陶瓷脆性破坏，并且Isobam凝胶体系环境友好，生产效率高，坯体质量好，成本更低，所制备的氧化铝‑氧化锆复合陶瓷耐磨性好、韧性好、强度高。
Preparation method of high-hardness alumina-zirconia composite ceramic
一种高硬度氧化铝-氧化锆复合陶瓷的制备方法
ZHANG LE (author) / CHEN SHIWEI (author) / WANG TING (author) / WANG TONG (author) / KANG JIAN (author) / QIU FAN (author) / ZHANG XINYUAN (author) / CHEN DONGSHUN (author) / CHEN HAO (author)
2024-08-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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